<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .tab {
            width: 100%;
            max-width: 960px;
            background-color: pink;
            margin: 0 auto;
        }
        .tab_list li{
            list-style: none;
            float: left;
        }
    </style>
</head>
<body>
    <div class="tab">
        <div class="tab_list">
            <ol>
                <li class="current">商品介绍</li>
                <li>规格与包装</li>
                <li>售后保障</li>
                <li>商品评价</li>
                <li>手机社区</li>
            </ol>
        </div>
        <div class="tab_con">
            <div class="item">商品介绍界面</div>
            <div class="item">规格包装界面</div>
            <div class="item">售后保障界面</div>
            <div class="item">商品评价界面</div>
            <div class="item">手机社区</div>
        </div>
    </div>
    
</body>
</html>